XML 73 R30.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Summary of Significant Accounting Policies (Policies) | 6 Months Ended
--- | ---
Jun. 30, 2014
Use of Estimates | Use of Estimates The preparation of financial statements requires us to make a number of significant estimates. These include estimates of fair value of certain assets and liabilities, amounts and timing of credit losses, prepayment rates, and other estimates that affect the reported amounts of certain assets and liabilities as of the date of the consolidated financial statements and the reported amounts of certain revenues and expenses during the reported period. It is likely that changes in these estimates (e.g., valuation changes due to supply and demand, credit performance, prepayments, interest rates, or other reasons) will occur in the near term. Our estimates are inherently subjective in nature and actual results could differ from our estimates and the differences could be material.
Fair Value Measurements | Fair Value Measurements Our financial statements include assets and liabilities that are measured at their estimated fair values in accordance with GAAP. A fair value measurement represents the price at which an orderly transaction would occur between willing market participants at the measurement date. We develop fair values for financial assets or liabilities based on available inputs and pricing that is observed in the marketplace. Examples of market information that we attempt to obtain include the following:
| • |  | Quoted prices for the same or similar securities;
| • |  | Relevant reports issued by analysts and rating agencies;
| • |  | The current level of interest rates and any directional movements in relevant indices, such as credit risk indices;
| • |  | Information about the performance of mortgage loans, such as delinquency and foreclosure rates, loss experience, and prepayment rates;
| • |  | Indicative prices or yields from broker/dealers (including prices from counterparties under securities repurchase agreements); and,
| • |  | Other relevant observable inputs, including nonperformance risk and liquidity premiums.
After considering all available indications of the appropriate rate of return that market participants would require, we consider the reasonableness of the range indicated by the results to determine an estimate that is most representative of fair value. The markets for many of the loans and securities that we invest in and issue are generally illiquid. Establishing fair values for illiquid assets and liabilities is inherently subjective and is often dependent upon our estimates and modeling assumptions. If we determine that either the volume and/or level of trading activity for an asset or liability has significantly decreased from normal market conditions, or price quotations or observable inputs are not associated with orderly transactions, the market inputs that we obtain might not be relevant. For example, broker or pricing service quotes might not be relevant if an active market does not exist for the financial asset or liability. The nature of the quote (for example, whether the quote is an indicative price or a binding offer) is also evaluated. In circumstances where relevant market inputs cannot be obtained, increased analysis and management judgment are required to estimate fair value. This generally requires us to establish internal assumptions about future cash flows and appropriate risk-adjusted discount rates. Regardless of the valuation inputs we apply, the objective of fair value measurement is unchanged from what it would be if markets were operating at normal activity levels and/or transactions were orderly; that is, to determine the current exit price. See Note 5 for further discussion on fair value measurements.
Fair Value Option | Fair Value Option We have the option to measure eligible financial assets, financial liabilities, and commitments at fair value on an instrument-by-instrument basis. This option is available when we first recognize a financial asset or financial liability or enter into a firm commitment. Subsequent changes in the fair value of assets, liabilities, and commitments where we have elected the fair value option are recorded in our consolidated statements of income. We elect the fair value option for certain residential and commercial loans, Sequoia IO securities and mortgage servicing rights (“MSRs”). We generally elect the fair value option for residential and commercial loans that are held-for-sale, due to our intent to sell or securitize the loans in the near-term. We generally elect the fair value option for Sequoia IO securities as we use these in part to hedge certain risks associated with our residential loans held-for-sale. We elect the fair value option for our MSRs in order to reflect the current value of these investments in our financial position and results each period. We also elect the fair value option for certain secured borrowings we may recognize when the sale of commercial loans do not meet the sale criteria in ASC 860. See Note 5 for further discussion on the fair value option.
Real Estate Loans | Real Estate Loans Residential and Commercial Loans — Held-for-Sale at Fair Value Residential and commercial loans held-for-sale include loans that we are marketing for sale to third parties, including transfers to securitization entities that we plan to sponsor and expect to be accounted for as sales for financial reporting purposes. We generally elect the fair value option for residential and commercial loans that we purchase with the intent to sell to third parties or transfer to Sequoia securitizations. Coupon interest is recognized as revenue when earned and deemed collectible or until a loan becomes more than 90 days past due. Changes in fair value are recurring and are reported through our consolidated statements of income in mortgage banking activities, net. Residential and Commercial Loans — Held-for-Investment Commercial Loans — Fair Value We may elect the fair value option for senior commercial mortgage loans that we originate or acquire that are bifurcated into a senior portion that is sold to a third party and a junior portion that we retain as an investment. When the transfer of the senior portion does not meet the criteria for sale treatment under GAAP, the entire loan (the senior and junior portions) remains on our consolidated balance sheet and we account for the transfer of the senior portion as a secured liability. Coupon interest is recognized as revenue when earned and deemed collectible or until a loan becomes more than 90 days past due. Changes in fair value are recurring and are reported through our consolidated statements of income in mortgage banking activities, net. Residential and Commercial Loans — At Amortized Cost Loans held-for-investment include residential loans owned at consolidated Sequoia entities and commercial loans owned at the Commercial Securitization entity and by us, net of any allowance for loan losses. Coupon interest is recognized as revenue when earned and deemed collectible or until a loan becomes more than 90 days past due or has been individually impaired, at which point the loan is placed on nonaccrual status. Interest previously accrued for loans that have become greater than 90 days past due or individually impaired is reserved for in the allowance for loan losses. Residential loans delinquent more than 90 days or in foreclosure are characterized as a serious delinquency. Cash principal and interest that is advanced from servicers subsequent to a loan becoming greater than 90 days past due or individually impaired is accounted for as a reduction in the outstanding loan principal balance. When a seriously delinquent loan previously placed on nonaccrual status has cured, meaning all delinquent principal and interest have been remitted by the borrower, the loan is placed back on accrual status. Alternately, loans that have been individually impaired may be placed back on accrual status if restructured and after the loan is considered reperforming. A restructured loan is considered reperforming when the loan has been current for at least 12 months. We use the interest method to determine an effective yield to amortize the premium or discount on real estate loans held-for-investment. For residential loans acquired prior to July 1, 2004, we use coupon interest rates as they change over time and anticipated principal payments to determine periodic amortization. For residential and commercial loans acquired after July 1, 2004, we use the initial coupon interest rate of the loans (without regard to future changes in the underlying indices) and anticipated principal payments, if any, to determine periodic amortization. We reclassify loans held-for-investment as loans held-for-sale if we determine that these loans will be sold or transferred to third parties. This may occur, for example, if we exercise our right to call ABS issued by a Sequoia securitization trust and decide to subsequently sell the underlying loans to third parties. See Note 6 for further discussion on residential loans. See Note 7 for further discussion on commercial loans. Residential Loans — Allowance for Loan Losses For residential loans classified as held-for-investment, we establish and maintain an allowance for loan losses based on our estimate of credit losses inherent in our loan portfolios at the reporting date. To calculate the allowance for loan losses, we assess inherent losses by determining loss factors (defaults, the timing of defaults, and loss severities upon defaults) that can be specifically applied to each loan or pool of loans. We consider the following factors in evaluating the allowance for loan losses:
| • |  | Ongoing analyses of loans, including, but not limited to, the age of loans and year of origination, underwriting standards, business climate, economic conditions, and other observable data;
| • |  | Historical loss rates and past performance of similar loans;
| • |  | Relevant market research and publicly available third-party reference loss rates;
| • |  | Trends in delinquencies and charge-offs;
| • |  | Effects and changes in credit concentrations;
| • |  | Information supporting a borrower’s ability to meet obligations;
| • |  | Ongoing evaluations of fair values of collateral using current appraisals and other valuations; and,
| • |  | Discounted cash flow analyses.
Once we determine the amount of defaults, the timing of the defaults, and severity of losses upon the defaults, we estimate expected losses for each individual loan or pool of loans over its expected life. We then estimate the timing of these losses and the losses probable to occur over an appropriate loss confirmation period. This period is defined as the range of time between the occurrence of a credit loss (such as the initial deterioration of the borrower’s financial condition) and the confirmation of that loss (the actual impairment or charge-off of the loan). The losses expected to occur within the estimated loss confirmation period are the basis of our allowance for loan losses, since we believe these losses exist at the reported date of the financial statements. We re-evaluate the adequacy of our allowance for loan losses quarterly. As part of the loss mitigation efforts undertaken by servicers of residential loans owned at Sequoia securitization entities, a number of loan modifications have been completed to help make mortgage loans more affordable for certain borrowers. Loan modifications may include, but are not limited to: (i) conversion of a floating rate mortgage loan into a fixed rate mortgage loan; (ii) reduction in the contractual interest rate of a mortgage loan; (iii) forgiveness of a portion of the contractual interest and/or principal amounts owed on a mortgage loan; and, (iv) extension of the contractual maturity of a mortgage loan. We evaluate all loan modifications performed by servicers to determine if they constitute troubled debt restructurings (“TDRs”) according to GAAP. If a loan is determined to be a TDR, it is removed from the general loan pools used for calculating allowances for loan losses and assessed for impairment on an individual basis based upon any adverse change in the expected future cash flows resulting from the modification. This difference is recorded to the provision for loan losses in our consolidated statements of income. When foreclosed property is received in full satisfaction for a defaulted loan, we estimate the fair value of the property, based on estimated net proceeds from the sale of the property (including servicer advances and other costs). To the extent that the fair value of the property is below the recorded investment of the loan, we record a charge against the allowance for loan losses for the difference. Foreclosed property is subsequently recorded as real estate owned (“REO”), a component of other assets on our consolidated balance sheets. Actual losses incurred on loans liquidated through a short-sale are also charged against the allowance for loan losses. See Note 6 for further discussion on the allowance for loan losses for residential loans. Commercial Loans — Allowance for Loan Losses For commercial loans classified as held-for-investment, we establish and maintain a general allowance for loan losses inherent in our portfolio at the reporting date and, where appropriate, a specific allowance for loan losses for loans we have determined to be impaired at the reporting date. An individual loan is considered impaired when it is deemed probable that we will not be able to collect all amounts due according to the contractual terms of the loan. Our methodology for assessing the adequacy of the allowance for loan losses begins with a formal review of each commercial loan in the portfolio and the assignment of an internal impairment status. Reviews are performed at least quarterly. We consider the following factors in evaluating each loan:
| • |  | Loan to value ratios upon origination or acquisition of the loan;
| • |  | The most recent financial information available for each loan and associated properties, including net operating income, debt service coverage ratios, occupancy rates, rent rolls, as well as any other loss factors we consider relevant, such as, but not limited to, specific loan trigger events that would indicate an adverse change in expected cash flows or payment delinquency;
| • |  | Economic trends, both macroeconomic as well as those directly affecting the properties associated with our loans, and the supply and demand of competing projects in the sub-market in which the subject property is located; and,
| • |  | The loan sponsor or borrowing entity’s ability to ensure that properties associated with the loan are managed and operated sufficiently.
Loan reviews are completed by asset management and finance personnel and reviewed and approved by senior management. Based on the assigned internal impairment status, a loan is categorized as “Pass,” “Watch List,” or “Workout.” Pass loans are defined as loans that are performing in accordance with the contractual terms of the loan agreement. Watch List loans are defined as performing loans for which the timing of cost recovery is under review. Workout loans are defined as loans that we believe have a credit impairment that may lead to a realized loss. Workout loans are typically assessed for impairment on an individual basis. Where an individual commercial loan is impaired, we record an allowance to reduce the carrying value of the loan to the current present value of expected future cash flows discounted at the loan’s effective rate or if a loan is collateral dependent, we reduce the carrying value to the estimated fair market value of the loan, with a corresponding charge to provision for loan losses on our consolidated statements of income. For all commercial loans that are not individually impaired, we assess the commercial loan portfolio in aggregate for loan losses based on our expectation of credit losses inherent in the portfolio at the reporting date. Our expectation of credit losses is informed by, among other things:
| • |  | Historical loss rates and past performance of similar loans in our own portfolio, if any;
| • |  | Publicly available third-party reference loss rates on similar loans; and,
| • |  | Trends in delinquencies and charge-offs in our own portfolio and among industry participants.
See Note 7 for further discussion on the allowance for loan losses for commercial loans. Repurchase Reserves We sell residential mortgage loans to various parties, including (1) securitization trusts, (2) Fannie Mae and Freddie Mac (the “Agencies”), and (3) banks and other financial institutions that purchase mortgage loans. We also purchase mortgage servicing rights. We may be required to repurchase residential mortgage loans in the event of a breach of specified contractual representations and warranties made in connection with these sales and purchases. We do not originate residential mortgage loans and believe the initial risk of loss due to loan repurchases (i.e., due to a breach of representations and warranties) would generally be a contingency to the companies from whom we acquired the loans. However, in some cases, such as where loans were acquired from companies that have since become insolvent, we may be required to repurchase loans. We establish reserves for mortgage repurchase liabilities related to various representations and warranties that reflect management’s estimate of losses for loans for which we could have a repurchase obligation, based on a combination of factors. Such factors can include estimated future defaults and loan repurchase rates, the potential severity of loss in the event of defaults, and the probability of our being liable for a repurchase obligation. We establish a reserve at the time loans are sold and continually update our reserve estimate during its life. The reserve for mortgage loan repurchase losses is included in other liabilities on our consolidated balance sheets and the related expense is included as a component of mortgage banking activities, net on our consolidated statements of income. See Note 15 for further discussion on the residential repurchase reserves. We have originated and sold commercial mortgage loans and have made standard representations and warranties upon sale of the loans to the loan purchasers, and in some cases, to securitization trusts. We review the need for a repurchase reserve related to these commercial loans on an ongoing basis and are not aware of any breaches of representations and warranties related to these loans.
Real Estate Securities, at Fair Value | Real Estate Securities, at Fair Value We classify our real estate securities as trading or available-for-sale securities. We use the “prime” or “non-prime” designation to categorize our residential securities based upon the general credit characteristics of the residential loans underlying each security at the time of origination. For example, prime residential loans are generally characterized by lower loan-to-value (“LTV”) ratios at the time the loans were originated, and are made to borrowers with higher Fair Isaac Corporation (“FICO”) scores. Non-prime residential loans are generally characterized by higher LTV ratios at the time the loans were originated and may have been made to borrowers with lower credit scores or impaired credit histories (while exhibiting the ability to repay their loans) at the time the loan was originated. Regardless of whether or not the loans underlying a residential security were designated as prime or non-prime at origination, there is a risk that the borrower may not be able to repay the loan. Trading Securities We primarily denote trading securities as those securities where we have adopted the fair value option. Trading securities are carried at their estimated fair values and coupon interest is recognized as interest income when earned and deemed collectible. Changes in the fair value of Sequoia IO and senior securities designated as trading securities are reported in mortgage banking activities, net, a component of our consolidated statements of income. Changes in the fair value of other trading securities are reported through our consolidated statements of income in other market valuation adjustments, net. Available-for-Sale Securities AFS securities primarily consist of non-agency residential mortgage backed securities (“RMBS”) and may include other residential and commercial securities. Non-agency RMBS are not issued or guaranteed by a federally chartered corporation, such as Fannie Mae or Freddie Mac, or any agency of the U.S. Government. AFS securities are carried at their estimated fair value with unrealized gains and losses excluded from earnings (except when an other-than-temporary impairment (“OTTI”) is recognized, as discussed below) and reported in accumulated other comprehensive income (“AOCI”), a component of stockholders’ equity. Interest income on AFS securities is accrued based on their outstanding principal balance and contractual terms and interest income is recognized based on the security’s effective interest rate. In order to calculate the effective interest rate, we must project cash flows over the remaining life of each security and make assumptions with regards to interest rates, prepayment rates, the timing and amount of credit losses, and other factors. On at least a quarterly basis, we review and, if appropriate, make adjustments to our cash flow projections based on input and analysis received from external sources, internal models, and our own judgments about interest rates, prepayment rates, the timing and amount of credit losses, and other factors. Changes in cash flows from those originally projected, or from those estimated at the last evaluation, may result in a prospective change in the yield/interest income recognized on these securities or in the recognition of OTTI as discussed below. For AFS securities purchased and held at a discount, a portion of the discount may be designated as non-accretable purchase discount (“credit reserve”), based on the cash flows we have projected for the security. The amount designated as credit reserve may be adjusted over time, based on our periodic evaluation of projected cash flows. If the performance of a security with a credit reserve is more favorable than previously forecasted, a portion of the credit reserve may be reallocated to accretable discount and recognized into interest income over time. Conversely, if the performance of a security with a credit reserve is less favorable than forecasted, the amount designated as credit reserve may be increased, or impairment charges and write-downs of such securities to a new cost basis could result. When the fair value of an AFS security is less than its amortized cost at the reporting date, the security is considered impaired. We assess our impaired securities at least quarterly to determine if the impairment is temporary or other-than-temporary (resulting in an OTTI). If we either — (i) intend to sell the impaired security; (ii) will more likely than not be required to sell the impaired security before it recovers in value; or (iii) if there has been an adverse change in cash flows — the impairment is deemed an OTTI. In the case of criteria (i) and (ii), we record the entire difference between the security’s estimated fair value and its amortized cost at the reporting date in our consolidated statements of income. If there has been an adverse change in cash flows, only the portion of the OTTI related to “credit” losses is recognized through other market valuation adjustments, net on our consolidated statements of income, with the remaining “non-credit” portion recognized through AOCI on our consolidated balance sheet. If the first two criteria are not met and there has not been an adverse change in cash flows, the impairment is considered temporary and the entire unrealized loss is recognized through AOCI on our consolidated balance sheets. For impaired AFS securities, to determine if there has been an adverse change in cash flows and if any portion of a resulting OTTI is related to credit losses, we compare the present value of the cash flows expected to be collected as of the current financial reporting date to the amortized cost basis of the security. The discount rate used to calculate the present value of expected future cash flows is the current yield used for income recognition purposes. If the present value of the current expected cash flows is less than the amortized cost basis, there has been an adverse change and the security is considered OTTI with the difference between these two amounts representing the credit loss. The determination as to whether an OTTI exists and, if so, the amount of credit impairment recognized in earnings is subjective, and based on information available at the time of the assessment as well as our estimates of future performance and cash flows. As a result, the timing and amount of OTTI constitute a material estimate that is susceptible to significant change. See Note 8 for further discussion on real estate securities.
MSRs | MSRs We recognize MSRs through the retention of servicing rights associated with residential mortgage loans that we have acquired and subsequently transferred to third parties (including the Agencies) or through the direct acquisition of MSRs sold by third parties. Typically, our MSRs are created through the transfer of loans to a third party or to a Sequoia residential mortgage securitization sponsored by us that meets the GAAP criteria for sale accounting. Our MSRs are held and managed at Redwood Residential Acquisition Corporation, a wholly-owned subsidiary of RWT Holdings, Inc., which is a taxable REIT subsidiary of ours. We contract with a licensed sub-servicer to perform servicing functions for loans associated with our MSRs. We have elected the fair value option for all of our MSRs, and they are initially recognized and carried at their estimated fair values. Income from MSRs and changes in the estimated fair value of MSRs are reported in MSR income, net, a component of our consolidated statements of income. See Note 9 for further discussion on MSRs.
Cash and Cash Equivalents | Cash and Cash Equivalents Cash and cash equivalents include non-restricted cash and highly liquid investments with original maturities of three months or less.
Restricted Cash | Restricted Cash Restricted cash primarily includes principal and interest payments that are collateral for, or payable to, owners of ABS issued by consolidated securitization entities. Restricted cash may also include cash retained in the Sequoia securitization entities or in the Residential Resecuritization or Commercial Securitization entities prior to the payments on or redemptions of outstanding ABS issued.
Accrued Interest Receivable | Accrued Interest Receivable Accrued interest receivable includes interest that is due and payable to us and deemed collectible. Cash interest is generally received within thirty days of recording the receivable. For financial assets where we have elected the fair value option, the associated accrued interest receivable on these assets is measured at fair value. For financial assets where we have not elected the fair value option, the associated accrued interest carrying values approximate fair values.
Derivative Financial Instruments | Derivative Financial Instruments Derivative financial instruments we typically utilize include swaps, swaptions, financial futures contracts, CMBX credit default index swaps, and “To Be Announced” (“TBA”) contracts. These derivatives are primarily used to manage interest rate risk associated with our operations. In addition, we enter into certain residential loan purchase commitments (“LPCs”) and residential loan forward sale commitments (“FSCs”) that are treated as derivatives for financial reporting purposes. All derivative financial instruments are recorded at their estimated fair values on our consolidated balance sheets. Derivatives with positive fair values to us are reported as assets and derivatives with negative fair values to us are reported as liabilities. We classify each derivative as either (i) a trading instrument (no specific hedging designation for financial reporting purposes) or (ii) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability (cash flow hedge). Changes in the fair values of derivatives accounted for as trading instruments, including any associated interest income or expense, are recorded in our consolidated statements of income through other market valuation adjustments, net, to the extent they are used to manage risks associated with our residential investment portfolio. Derivatives used to manage certain risks associated with our residential and commercial mortgage banking activities, including valuation changes related to residential LPCs and FSCs, are included in mortgage banking activities, net, on our consolidated statements of income. Changes in the fair values of derivatives accounted for as cash flow hedges, to the extent they are effective, are recorded in accumulated other comprehensive income, a component of equity on our consolidated balance sheets. Interest income or expense, and any ineffectiveness associated with these derivatives, are recorded as a component of net interest income in our consolidated statements of income. We measure the effective portion of cash flow hedges by comparing the change in fair value of the expected future variable cash flows of the derivative hedging instruments with the change in fair value of the expected future variable cash flows of the hedged item. We will discontinue a designated cash flow hedging relationship if (i) we determine that the hedging derivative is no longer expected to be effective in offsetting changes in the cash flows of the designated hedged item; (ii) the derivative expires or is sold, terminated, or exercised; (iii) the derivative is de-designated as a cash flow hedge; or, (iv) it is probable that a forecasted transaction associated with the hedged item will not occur by the end of the originally specified time period. To the extent we de-designate or terminate a cash flow hedging relationship and the associated hedged item continues to exist, any unrealized gain or loss of the cash flow hedge at the time of de-designation remains in accumulated other comprehensive income and is amortized using the straight-line method through interest expense over the remaining life of the hedged item. Swaps and Swaptions Interest rate swaps are agreements in which (i) one counterparty exchanges a stream of fixed interest payments for another counterparty’s stream of variable interest cash flows; or, (ii) each counterparty exchanges variable interest cash flows that are referenced to different indices. Interest rate swaptions are agreements that provide the owner the right but not the obligation to enter into an underlying interest rate swap with a counterparty in the future. Interest rate caps are agreements in which the owner receives payments at the end of each period for which the prevailing interest rate exceeds an agreed upon strike price. We enter into interest rate agreements primarily to reduce significant changes in our income or equity caused by interest rate volatility. Certain of these interest rate agreements may be designated as cash flow hedges. Eurodollar Futures and Financial Futures Eurodollar futures are futures contracts on time deposits denominated in U.S. dollars at banks outside the United States. Eurodollar futures, unlike our other derivatives, have maturities of only three months. Therefore, in order to achieve the desired interest rate offset necessary to manage our risk, consecutively maturing contracts are required, resulting in a stated notional amount that is typically higher than our other derivatives. Financial futures are futures contracts on benchmark U.S. Treasury rates. TBA Contracts TBA contracts are forward contracts to purchase mortgage-backed securities that will be issued by a U.S. government sponsored enterprise in the future. We purchase or sell these derivatives to offset — to varying degrees — changes in the values of mortgage products for which we have exposure to interest rate volatility. Credit Default Index Swaps Credit default index swaps include instruments such as CMBX, which are indexes referencing tranches from 25 different commercial mortgage-backed securities (“CMBS”) deals, each with different credit ratings. The CMBX indexes enable participants to hedge or gain exposure to a series of similar CMBS securities. We utilize CMBX to hedge certain risks related to senior commercial mortgage loans we originate for sale into CMBS. Loan Purchase and Forward Sale Commitments We use the term LPCs to refer to agreements with third-party residential loan originators to purchase residential loans at a future date that qualify as a derivative under GAAP. LPCs are recorded at their estimated fair values on our consolidated balance sheets. Changes in fair value are recurring and are reported through our consolidated statements of income in mortgage banking activities, net. We use the term FSCs to refer to agreements with third-parties to sell residential loans at a future date that also qualify as derivatives under GAAP. FSCs are recorded at their estimated fair values on our consolidated balance sheets. Changes in fair value are recurring and are reported through our consolidated statements of income in mortgage banking activities, net. See Note 10 for further discussion on derivative financial instruments.
Deferred Tax Assets and Liabilities | Deferred Tax Assets and Liabilities Our deferred tax assets/liabilities are generated by temporary differences in GAAP and taxable income at our taxable subsidiaries. These differences generally reflect differing accounting treatments for GAAP and tax, such as accounting for mortgage servicing rights, discount and premium amortization, credit losses, asset impairments, and certain valuation estimates. As a result of these differences, we may recognize taxable income in periods prior to when we recognize income for GAAP. When this occurs, we pay the tax liability as required and establish a deferred tax asset. As the income is subsequently realized in future periods under GAAP, the deferred tax asset is reduced. We may also recognize income under GAAP in periods prior to when we recognize the income for tax. When this occurs, we establish a deferred tax liability. As the income is subsequently realized in future periods for tax, the deferred tax liability is reduced. In assessing the realizability of deferred tax assets, we consider whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. We consider historical and projected future taxable income and capital gains as well as tax planning strategies in making this assessment. We determine the extent to which realization of this deferred asset is not assured and establish a valuation allowance accordingly. The estimate of net deferred tax assets could change in future periods to the extent that actual or revised estimates of future taxable income during the carryforward periods change from current expectations.
Deferred Securities Issuance Costs | Deferred Securities Issuance Costs Securities issuance costs are expenses associated with the issuance of long-term debt, and the ABS issued from the Residential Resecuritization, the Commercial Securitization, and Sequoia securitization entities we sponsor and consolidate for financial reporting purposes. These expenses typically include underwriting, rating agency, legal, accounting, and other fees. ABS issuance costs associated with liabilities reported at cost are deferred. Deferred securities issuance costs are reported on our consolidated balance sheets as deferred charges (an asset) and are amortized as an adjustment to interest expense using the interest method, based upon the actual and estimated repayment schedules of the related securities issued.
Other Assets | Other Assets Other assets include margin and investment receivable, REO, income tax receivables, fixed assets, principal receivable, and other prepaid expenses and receivables. REO property acquired through, or in lieu of, foreclosure is initially recorded at fair value, and subsequently reported at the lower of its carrying amount or fair value (less estimated cost to sell). Changes in the fair value of an REO property that has a fair value at or below its carrying amount are recorded in our consolidated statements of income as a component of other market valuation adjustments, net. Margin receivable reflects cash collateral we have posted with various counterparties relating to our derivative and lending agreements with those counterparties, as applicable. See Note 11 for further discussion on other assets.
Short-Term Debt | Short-Term Debt Short-term debt includes borrowings under master repurchase agreements, loan warehouse facilities, and other forms of borrowings that expire within one year with various counterparties. These borrowings may be unsecured or collateralized by cash, loans, or securities. If the value (as determined by the applicable counterparty) of the collateral securing those borrowings decreases, we may be subject to margin calls during the period the borrowings are outstanding. In instances where we do not satisfy the margin calls within the required time frame, the counterparty may retain the collateral and pursue any outstanding debt amount from us. See Note 12 for further discussion on short-term debt.
Accrued Interest Payable | Accrued Interest Payable Accrued interest payable includes interest that is due and payable to third parties. Interest is generally paid within one to three months of recording the payable, based upon our remittance requirements, and is paid semi-annually for our convertible debt. For borrowings where we have elected the fair value option, the associated accrued interest on these liabilities is measured at fair value. For financial liabilities where we have not elected the fair value option, the associated accrued interest carrying values approximate fair values.
Asset-Backed Securities Issued | Asset-Backed Securities Issued ABS issued represents asset-backed securities issued by bankruptcy-remote entities sponsored and consolidated by Redwood. These entities include certain Sequoia entities, the Residential Resecuritization, and the Commercial Securitization. Assets at these entities are held in the custody of securitization trustees and are not owned by Redwood. These trustees collect principal and interest payments (less servicing and related fees) from the assets and make corresponding principal and interest payments to the ABS investors. ABS issued are carried at their unpaid principal balances net of any unamortized discount or premium. See Note 13 for further discussion on ABS issued.
Long-Term Debt | Long-Term Debt Commercial Long-term Debt Commercial long-term debt includes borrowings under a master repurchase agreement that expires in more than one year with a financial institution counterparty. These borrowings are collateralized by commercial loans. If the value (as determined by the applicable counterparty) of the collateral securing those borrowings decreases, we may be subject to margin calls during the period the borrowings are outstanding. In instances where we do not satisfy the margin calls within the required time frame, the counterparty may retain the collateral and pursue any outstanding debt amount from us. Commercial Secured Borrowings Commercial secured borrowings represent liabilities recognized in association with cash received from transfers of portions of senior commercial mortgage loans to third parties that did not meet the criteria for sale treatment under ASC 860 and were accounted for as financings. We elect the fair value option for these secured borrowings and they are held at their estimated fair value on our consolidated balance sheets. Convertible Notes Convertible notes include unsecured convertible senior notes and are carried at their unpaid principal balance. Interest on the notes is payable semiannually and the notes mature on April 15, 2018. If converted by a holder, upon conversion the holder of the notes would receive shares of our common stock. Trust Preferred Securities and Subordinated Notes Trust preferred securities and subordinated notes are carried at their unpaid principal balance. This long-term debt is unsecured with quarterly interest payments determined based upon a floating rate equal to the three-month London Interbank Offered Rate (“LIBOR”) plus a margin until it is redeemed in whole or matures at a future date. See Note 14 for further discussion on long-term debt.
Equity | Equity Accumulated Other Comprehensive Income Net unrealized gains and losses on real estate securities available-for-sale and interest rate agreements designated as cash flow hedges are reported as components of accumulated other comprehensive income on our consolidated statements of changes in equity and our consolidated balance sheets. Net unrealized gains and losses on securities and interest rate agreements held by our taxable subsidiaries that are reported in other comprehensive income are adjusted for the effects of taxation and may create deferred tax assets or liabilities. Earnings Per Common Share Basic earnings per common share (“EPS”) is computed by dividing net income allocated to common shareholders by the weighted average common shares outstanding. Net income allocated to common shareholders represents net income allocable to common shareholders, less income allocated to participating securities (as described herein). Diluted EPS is computed by dividing income allocated to common shareholders by the weighted average common shares outstanding plus amounts representing the dilutive effect of share-based payment awards. In addition, if the assumed conversion of convertible notes to common shares is dilutive, diluted EPS is adjusted by adding back the periodic interest expense associated with dilutive convertible debt to net income and adding the shares issued in an assumed conversion to the diluted share count. The two-class method is an earnings allocation formula under which EPS is calculated for common stock and participating securities according to dividends declared and participating rights in undistributed earnings. Under this method, all earnings (distributed and undistributed) are allocated between participating securities and common shares based on their respective rights to receive dividends or dividend equivalents. Accounting guidance on EPS defines vested and unvested share-based payment awards containing nonforfeitable rights to dividends or dividend equivalents as participating securities that are included in computing EPS under the two-class method. See Note 16 for further discussion on equity.
Incentive Plans | Incentive Plans In May 2014, our shareholders approved the 2014 Redwood Trust, Inc. Incentive Plan (“Incentive Plan”) for executive officers, employees, and non-employee directors, which replaced the 2002 Redwood Trust, Inc. Incentive Plan. The Incentive Plan provides for the grant of restricted stock, deferred stock, deferred stock units, performance-based awards (including performance stock units), dividend equivalents, stock payments, restricted stock units, and other types of awards to eligible participants. Long-term incentive awards granted under the Incentive Plan generally vest over a three- or four-year period. Awards made under the Incentive Plan to officers and other employees in lieu of the payment in cash of a portion of annual bonuses earned generally vest immediately, but are subject to a three-year mandatory holding period. Non-employee directors are also provided annual awards under the Incentive Plan that generally vest immediately. The cost of the awards is amortized over the vesting period on a straight-line basis. Employee Stock Purchase Plan In May 2013, our shareholders approved an amendment to our previously amended 2002 Redwood Trust, Inc. Employee Stock Purchase Plan (“ESPP”) to increase the number of shares available under the ESPP. The purpose of the ESPP is to give our employees an opportunity to acquire an equity interest in the Company through the purchase of shares of common stock at a discount. The ESPP allows eligible employees to purchase common stock at 85% of its fair value, subject to certain limits. Fair value as defined under the ESPP is the lesser of the closing market price of the common stock on the first day of the calendar year or the last day of the calendar quarter. Executive Deferred Compensation Plan In November 2013, our Board of Directors approved an amendment to our 2002 Executive Deferred Compensation Plan (“EDCP”) to allow non-employee directors to defer certain cash payments and dividends into Deferred Stock Units (“DSUs”). The EDCP allows eligible employees and directors to defer portions of current salary and certain other forms of compensation. The Company matches some deferrals. Compensation deferred under the EDCP is recorded as a liability on our consolidated balance sheets. The EDCP allows for the investment of deferrals in either an interest crediting account or DSUs. 401(k) Plan We offer a tax-qualified 401(k) Plan to all employees for retirement savings. Under this Plan, employees are allowed to defer and invest up to 100% of their cash earnings, subject to the maximum 401(k) Plan contribution limit set forth by the Internal Revenue Service. We match some employee contributions to encourage participation and to provide a retirement planning benefit to employees. Vesting of the 401(k) Plan matching contributions is based on the employee’s tenure at the Company, and over time an employee becomes increasingly vested in both prior and new matching contributions. See Note 17 for further discussion on equity compensation plans.
Taxes | Taxes We have elected to be taxed as a REIT under the Internal Revenue Code and the corresponding provisions of state law. To qualify as a REIT we must distribute at least 90% of our annual REIT taxable income to shareholders (not including taxable income retained in our taxable subsidiaries) within the time frame set forth in the tax code and also meet certain other requirements related to assets, income, and stock ownership. We assess our tax positions for all open tax years and record tax benefits only if tax positions meet a more-likely-than-not threshold in accordance with FASB guidance on accounting for uncertainty in income taxes. We classify interest and penalties on material uncertain tax positions as interest expense and operating expense, respectively, in our consolidated statements of income. See Note 20 for further discussion on taxes.
Recent Accounting Pronouncements | Recent Accounting Pronouncements In May 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers.” ASU 2014-09 supersedes the revenue recognition requirements in “Topic 605, Revenue Recognition” and requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 is effective retrospectively for annual or interim reporting periods beginning after December 15, 2016, with early application not permitted. We are currently evaluating the new standard.
Balance Sheet Netting | Balance Sheet Netting Certain of our derivatives and short-term debt are subject to master netting arrangements or similar agreements. Under GAAP, in certain circumstances we may elect to present certain financial assets, liabilities and related collateral subject to master netting arrangements in a net position on our consolidated balance sheets. However, we do not report any of these financial assets or liabilities on a net basis, and instead present them on a gross basis on our consolidated balance sheets. The table below presents financial assets and liabilities that are subject to master netting arrangements or similar agreements categorized by financial instrument, together with corresponding financial instruments and corresponding collateral received or pledged at June 30, 2014 and December 31, 2013. Offsetting of Financial Assets, Liabilities, and Collateral
|  | Gross Amounts of Recognized Assets (Liabilities) |  |  | Gross Amounts Offset in Consolidated Balance Sheet |  |  | Net Amounts of Assets (Liabilities) Presented in Consolidated Balance Sheet |  |  | Gross Amounts Not Offset in Consolidated Balance Sheet (1) |  |  |  |
June 30, 2014 (In Thousands) |  |  |  |  | Financial Instruments |  |  | Cash Collateral (Received) Pledged |  |  | Net Amount |
Assets (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate agreements |  | $ | 1,925 |  |  | $ | - |  |  | $ | 1,925 |  |  | $ | (572) |  |  | $ | - |  |  | $ | 1,353 |
Credit default index swaps |  |  | 588 |  |  |  | - |  |  |  | 588 |  |  |  | - |  |  |  | - |  |  |  | 588 |
TBAs |  |  | 3,294 |  |  |  | - |  |  |  | 3,294 |  |  |  | (2,499) |  |  |  | - |  |  |  | 795 |
Total Assets |  | $ | 5,807 |  |  | $ | - |  |  | $ | 5,807 |  |  | $ | (3,071) |  |  | $ | - |  |  | $ | 2,736 |
Liabilities (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate agreements |  | $ | (32,637) |  |  | $ | - |  |  | $ | (32,637) |  |  | $ | 572 |  |  | $ | 32,065 |  |  | $ | - |
TBAs |  |  | (5,540) |  |  |  | - |  |  |  | (5,540) |  |  |  | 2,499 |  |  |  | 1,746 |  |  |  | (1,295) |
Futures |  |  | (494) |  |  |  | - |  |  |  | (494) |  |  |  | - |  |  |  | 494 |  |  |  | - |
Loan warehouse debt |  |  | (864,680) |  |  |  | - |  |  |  | (864,680) |  |  |  | 864,680 |  |  |  | - |  |  |  | - |
Security repurchase agreements |  |  | (853,750) |  |  |  | - |  |  |  | (853,750) |  |  |  | 853,750 |  |  |  | - |  |  |  | - |
Commercial borrowings |  |  | (52,916) |  |  |  | - |  |  |  | (52,916) |  |  |  | 52,916 |  |  |  | - |  |  |  | - |
Total Liabilities |  | $ | (1,810,017) |  |  | $ | - |  |  | $ | (1,810,017) |  |  | $ | 1,774,417 |  |  | $ | 34,305 |  |  | $ | (1,295) |
|  | Gross Amounts of Recognized Assets (Liabilities) |  |  | Gross Amounts Offset in Consolidated Balance Sheet |  |  | Net Amounts of Assets (Liabilities) Presented in Consolidated Balance Sheet |  |  | Gross Amounts Not Offset in Consolidated Balance Sheet (1) |  |  |  |
December 31, 2013 (In Thousands) |  |  |  |  | Financial Instruments |  |  | Cash Collateral (Received) Pledged |  |  | Net Amount |
Assets (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate agreements |  | $ | 6,566 |  |  | $ | - |  |  | $ | 6,566 |  |  | $ | (5,402) |  |  | $ | - |  |  | $ | 1,164 |
TBAs |  |  | 1,138 |  |  |  | - |  |  |  | 1,138 |  |  |  | (656) |  |  |  | (482) |  |  |  | - |
Futures |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total Assets |  | $ | 7,704 |  |  | $ | - |  |  | $ | 7,704 |  |  | $ | (6,058) |  |  | $ | (482) |  |  | $ | 1,164 |
Liabilities (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate agreements |  | $ | (16,599) |  |  | $ | - |  |  | $ | (16,599) |  |  | $ | 5,402 |  |  | $ | 11,197 |  |  | $ | - |
TBAs |  |  | (661) |  |  |  | - |  |  |  | (661) |  |  |  | 656 |  |  |  | 5 |  |  |  | - |
Futures |  |  | (528) |  |  |  | - |  |  |  | (528) |  |  |  | - |  |  |  | 528 |  |  |  | - |
Loan warehouse debt |  |  | (184,789) |  |  |  | - |  |  |  | (184,789) |  |  |  | 184,789 |  |  |  | - |  |  |  | - |
Security repurchase agreements |  |  | (677,974) |  |  |  | - |  |  |  | (677,974) |  |  |  | 677,974 |  |  |  | - |  |  |  | - |
Commercial borrowings |  |  | (49,467) |  |  |  | - |  |  |  | (49,467) |  |  |  | 49,467 |  |  |  | - |  |  |  | - |
Total Liabilities |  | $ | (930,018) |  |  | $ | - |  |  | $ | (930,018) |  |  | $ | 918,288 |  |  | $ | 11,730 |  |  | $ | - |
(1) | Amounts presented in these columns are limited in total to the net amount of assets or liabilities presented in the prior column by instrument. In certain cases, there is excess cash collateral or financial assets we have pledged to a counterparty (which may, in certain circumstances, be a clearinghouse) that exceed the financial liabilities subject to a master netting arrangement or similar agreement. Additionally, in certain cases, counterparties may have pledged excess cash collateral to us that exceeds our corresponding financial assets. In each case, any of these excess amounts are excluded from the table although they are separately reported in our consolidated balance sheets as assets or liabilities, respectively.
(2) | Interest rate agreements, TBAs, and futures are components of derivatives instruments on our consolidated balances sheets. Loan warehouse debt, which is secured by residential and commercial mortgage loans, and security repurchase agreements are components of short-term debt on our consolidated balance sheets. Commercial borrowings are a component of long-term debt on our consolidated balance sheets.
For each category of financial instrument set forth in the table above, the assets and liabilities resulting from individual transactions within that category between Redwood and a counterparty are subject to a master netting arrangement or similar agreement with that counterparty that provides for individual transactions to be treated as a single transaction. For certain categories of these instruments, some of our transactions are cleared and settled through one or more clearinghouses that are substituted as our counterparty and references herein to master netting arrangements or similar agreements include the arrangements and agreements governing the clearing and settlement of these transactions through the clearinghouses. In the event of the termination and close-out of any of those transactions, the corresponding master netting arrangement or similar agreement provides for settlement on a net basis and for settlement to include the proceeds of the liquidation of any corresponding collateral, subject to certain limitations on termination, settlement, and liquidation of collateral that may apply in the event of the bankruptcy or insolvency of a party that should not inhibit the eventual practical realization of the principal benefits of those transactions or the corresponding master netting arrangement or similar agreement and any corresponding collateral.

X
- Definition Disclosure of accounting policy for electing the fair value option for financial instruments. + References No definition available. + Details
Name: | rwt_AccountingPolicyForElectingFairValueOptionForFinancialInstrumentsPolicyTextBlock
Namespace Prefix: | rwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for accrued interest receivable. + References No definition available. + Details
Name: | rwt_AccruedInterestReceivablePolicyTextBlock
Namespace Prefix: | rwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for accrued interest payable. + References No definition available. + Details
Name: | rwt_AccruedLiabilitiesPolicyTextBlock
Namespace Prefix: | rwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for costs incurred to obtain or issue asset-backed securities, the effects of refinancing, method of amortizing deferred financing costs and original issue discount, and classifications of asset-backed securities on the balance sheet. + References No definition available. + Details
Name: | rwt_AssetBackedSecuritiesPolicyTextBlock
Namespace Prefix: | rwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Balance Sheet Netting + References No definition available. + Details
Name: | rwt_BalanceSheetNettingPolicyTextBlock
Namespace Prefix: | rwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for mortgage servicing rights. + References No definition available. + Details
Name: | rwt_MortgageServicingRightsPolicyTextBlock
Namespace Prefix: | rwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for other assets. + References No definition available. + Details
Name: | rwt_OtherAssetsPolicyTextBlock
Namespace Prefix: | rwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for short-term debt. + References No definition available. + Details
Name: | rwt_ShortTermDebtPolicyTextBlock
Namespace Prefix: | rwt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2122427 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 + Details
Name: | us-gaap_CashAndCashEquivalentsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Entity's cash and cash equivalents accounting policy with respect to restricted balances. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2122427 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.1(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph a -Article 9 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 + Details
Name: | us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for costs incurred to obtain or issue debt, the effects of refinancings, method of amortizing deferred financing costs and original issue discount, and classifications of debt on the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2208565 + Details
Name: | us-gaap_DebtPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for deferral and amortization of significant deferred charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
Name: | us-gaap_DeferredChargesPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for its derivative instruments and hedging activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41620-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579240-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph n -Article 4 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41675-113959 + Details
Name: | us-gaap_DerivativesPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for determining the fair value of financial instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155942 + Details
Name: | us-gaap_FairValueOfFinancialInstrumentsPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for finance, loan and lease receivables, including those held for investment and those held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the allowance for loan and lease losses is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition (revenues, expenses and gains and losses arising from committing to issue, issuing, granting, collecting, terminating, modifying and holding loans) policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5144-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6378556&loc=d3e10133-111534 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5093-111524 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (b,d) -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3-5 -Article 5 + Details
Name: | us-gaap_FinanceLoansAndLeasesReceivablePolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2144681 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2144749 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32840-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 740 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32809-109319 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32247-109318 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32280-109318 + Details
Name: | us-gaap_IncomeTaxPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for investments in debt and equity securities that have readily determinable fair values (marketable securities). At a minimum, the disclosure might address accounting policies for investments classified as trading, available for sale, or held to maturity and may include how the entity determines whether impairments of available for sale or held to maturity investments are other than temporary, how the fair values of the entity's securities are determined, and the entity's accounting treatment for transfers between investment categories. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196929 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section M Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 2, 12 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62652-112803 + Details
Name: | us-gaap_MarketableSecuritiesPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. + References No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for income taxes, including investment tax credits, and the related regulatory treatment (for example, whether deferred income tax accounting - normalization - is allowed in rate making). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 740 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501382&loc=d3e54053-110423 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 740 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6501382&loc=d3e54136-110423 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 740 -URI http://asc.fasb.org/subtopic&trid=2156927 + Details
Name: | us-gaap_RegulatoryIncomeTaxesPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2228939 + Details
Name: | us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for its capital stock transactions, including dividends and accumulated other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18726-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
Name: | us-gaap_StockholdersEquityPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6143-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6132-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6061-108592 + Details
Name: | us-gaap_UseOfEstimates
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration